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Analyses of shellfish hematopoiesis using single-cell RNA-Seq and genetic engineering technology

Research Project

Project/Area Number 20K06222
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40040:Aquatic life science-related
Research InstitutionTohoku University

Principal Investigator

Nagasawa Kazue  東北大学, 農学研究科, 助教 (50794236)

Co-Investigator(Kenkyū-buntansha) 横井 勇人  東北大学, 農学研究科, 助教 (40569729)
尾定 誠  東北大学, 農学研究科, 教授 (30177208)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords貝類 / 造血機構 / 幹細胞 / シングルセル解析 / 遺伝子改変 / プロモーター / 強制発現系 / 二枚貝 / 遺伝子導入 / 水生無脊椎動物用プロモーター
Outline of Research at the Start

貝類養殖はサステイナブルな海面養殖生産であり世界的な増加傾向にある。私は貝類の種苗生産技術向上に寄与すべく、生殖細胞形成における血球の機能を研究している。貝類の血液は、酸素や栄養の運搬、生体防御、傷の治癒の機能を有するとされている。しかし「貝類の血球は何種類あるか?」また「血球がどこで造られどのように分化するか?」は未だに解明されていない。本研究では、貝類血球のシングルセル解析により、遺伝子発現パターンから血球のタイプ分けを試みる。さらに遺伝子改変技術を確立し、生きた血球で緑色蛍光タンパク質を発現させ可視化することで貝類の造血機構の解明に挑む。これを起点とし貝類の生殖細胞形成機構の謎に迫る。

Outline of Final Research Achievements

To elucidate the mechanisms of hematopoiesis and hemocyte differentiation in bivalves, cytological and bulk RNA-Seq analyses of scallop hemocytes were performed to clearly identify hemocytes cells as immune cells by using novel bivalve hemocyte markers. In addition, scallop hemocytes were classified into 10 different cell populations by single-cell RNA-Seq approach. Next, to develop gene engineering technology in bivalves, we constructed a microinjection system optimized for multiple species of marine bivalves and successfully expressed GFP in fertilized eggs. Furthermore, we discovered a novel viral promoter that is highly expressed in scallop primary culture cells, and succeeded in gene delivery to primary culture cells using electroporation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、日本の重要な養殖対象種であるホタテガイの生体防御の要である血球について、細胞学的特徴や免疫細胞としての性質を初めて明らかにし、水産増養殖業の防疫対策に資する成果を得た。さらにこれまで、遺伝組換え等の技術が全く開発されてこなかった二枚貝に対し、本研究では外来遺伝子を強制的に発現させることが可能な新規ウイルスプロモーターを発見した。以上、本研究の成果と開発された技術は、二枚貝や他の軟体動物の遺伝子工学を大きく発展させるものであり、学術的に重要な成果である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (26 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Expression and functional analyses for estrogen receptor and estrogen related receptor of Yesso scallop, Patinopecten yessoensis2023

    • Author(s)
      Gu Wenbin、Thitiphuree Tongchai、Otoki Yurika、Marquez Emily C.、Kitano Takeshi、Itoh Naoki、Nagasawa Kazue、Osada Makoto
    • Journal Title

      The Journal of Steroid Biochemistry and Molecular Biology

      Volume: 231 Pages: 106302-106302

    • DOI

      10.1016/j.jsbmb.2023.106302

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hemocytes of Yesso scallop characterized by cytological, molecular marker, and functional analyses2023

    • Author(s)
      Kazue Nagasawa、Makoto Kanamori、Jeongwoong Yoon、Mutsuko Kobayashia、Mariia Mokrina、Takahiro Katoa、Makoto Osada
    • Journal Title

      Fish and Shellfish Immunology

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gene delivery available in molluscan cells by strong promoter discovered from bivalve-infectious virus2022

    • Author(s)
      Yoon Jeongwoong、Gu Wen-Bin、Konuma Mizuki、Kobayashi Mutsuko、Yokoi Hayato、Osada Makoto、Nagasawa Kazue
    • Journal Title

      Proceedings of the National Academy of Sciences of the United States of America

      Volume: 119 Issue: 45 Pages: 209910119-209910119

    • DOI

      10.1073/pnas.2209910119

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gonadal somatic cell-specific transforming growth factor-β superfamily member in the Yesso scallop reveals gonadal somatic cell distribution during the reproductive phase2021

    • Author(s)
      Konuma Mizuki、Nagasawa Kazue、Mokrina Mariia、Kobayashi Mutsuko、Osada Makoto
    • Journal Title

      Gene

      Volume: in press Pages: 145627-145627

    • DOI

      10.1016/j.gene.2021.145627

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Seasonal composition of immature germ cells in the Yesso scallop identified by vasa-like gene (my-vlg) and protein expression, with evidence of irregular germ cell differentiation accompanied with a high mortality event2021

    • Author(s)
      Mokrina Mariia、Nagasawa Kazue、Kanamori Makoto、Natsuike Masafumi、Osada Makoto
    • Journal Title

      Aquaculture Reports

      Volume: 19 Pages: 100613-100613

    • DOI

      10.1016/j.aqrep.2021.100613

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Recent efforts for reproductive immunology in placenta fish and bivalve using transplantation techniques2023

    • Author(s)
      Kazue Nagasawa
    • Organizer
      WUR-TU Immunity, Food Science, and Synchrotron Light Symposium 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ホタテガイの夏季の異常成熟とその生殖細胞の解析2022

    • Author(s)
      長澤一衛
    • Organizer
      令和4年度青函水産試験研究交流会議(ホタテガイ部会)
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの内因性エストロゲン様分子の探索2022

    • Author(s)
      GU WENBIN,原口省吾,長澤一衛,尾定誠
    • Organizer
      第46回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 二枚貝の血球のRNA-Seq解析とグラフトによる細胞性免疫機構の解析2022

    • Author(s)
      長澤一衛,金森誠,小林睦子,Mokrina Mariia,Yoon Jeongwoong,加藤嵩大,尾定誠
    • Organizer
      第46回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 海産軟体動物由来の初代細胞培養の樹立と二枚貝感染ウイルスプロモーターを用いた遺伝子導入系の確立2022

    • Author(s)
      Jeongwoong YOON,Wen-Bin GU,小沼瑞,小林睦子,横井勇人,尾定誠,長澤一衛
    • Organizer
      第46回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Diverse viral immediate-early genes for genetic engineering: Application in Mollusca2022

    • Author(s)
      Jeongwoong Yoon,Wen-Bin Gu,Mizuki Konuma,Mutsuko Kobayashi,Hayato Yokoi,Makoto Osada,Kazue Nagasawa
    • Organizer
      Tohoku University ? OIST 3rd Joint Workshop on Biodiversity: From Genes and Species to Ecosystem Services and Resilience
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characterization of glycoprotein hormones and receptor pathway in reproductive development of scallop, Mizuhopecten yessoensis2022

    • Author(s)
      Wenbin GU,Shenelle Pamela Bairan LIM,Kazue Nagasawa,Makoto Osada
    • Organizer
      Tohoku University ? OIST 3rd Joint Workshop on Biodiversity: From Genes and Species to Ecosystem Services and Resilience
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gonadotropin-releasing hormone, GnRH; functional evolution and diversity2022

    • Author(s)
      Makoto Osada,Kazue Nagasawa
    • Organizer
      Tohoku University ? OIST 3rd Joint Workshop on Biodiversity: From Genes and Species to Ecosystem Services and Resilience
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Attempts to establish a continuous cell line from marine bivalve species2022

    • Author(s)
      Jeongwoong YOON,Wen-Bin GU,小沼瑞,小林睦子,横井勇人,尾定誠,長澤一衛
    • Organizer
      第7回ユニーク会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの生殖工学に関する研究2022

    • Author(s)
      長澤一衛,小沼瑞,Yoon Jeongwoong,Mokrina Mariia,坂口あかり,小林睦子,尾定誠
    • Organizer
      第7回ユニーク会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの糖タンパク質ホルモンと受容体Fshr1の制御経路の解明と生殖巣発達への影響2022

    • Author(s)
      顧文彬,Shenelle Pamela Bairan LIM,長澤一衛,尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイの2種類のmyGnRHペプチドによる性分化と生殖細胞発達への影響2022

    • Author(s)
      顧文彬,Mariia Mokrina・Shenelle Pamela Bairan LIM,小林睦子,栖原健吾,長澤一衛,尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホタテガイ血球の形態・性状と遺伝子発現に関する研究2022

    • Author(s)
      長澤一衛,金森誠,道総研,小林睦子,Mokrina Mariia,Yoon Jeongwoon,加藤嵩大,尾定誠
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 水産軟体動物細胞で機能するウイルスプロモーターの発見2022

    • Author(s)
      Jeongwoong YOON,Wen-Bin GU,小沼瑞,小林睦子,横井勇人,尾定誠,長澤一衛
    • Organizer
      令和4年度日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] マイクロインジェクションを用いた二枚貝類受精卵への遺伝子導入法の開発2021

    • Author(s)
      小沼瑞, 尾定誠, Jeongwoong Yoon, 小林睦子, 長澤一衛
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] ホタテガイ生殖巣の初代培養およびエレクトロポレーションによる遺伝子導入の試み2021

    • Author(s)
      Jeongwoong YOON, Mizuki KONUMA, Gu WEN-BIN, Mutsuko KOBAYASHI, Makoto OSADA, Kazue NAGASAWA
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 二枚貝類における組織移植技術(グラフト)の開発2021

    • Author(s)
      吉野里穂, Jeongwoong Yoon, 小林睦子, 小沼瑞, 尾定誠, 長澤一衛
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] ホタテガイの濾胞刺激ホルモン(Fsh)および受容体(Fshr)様分子の探索と生殖巣発達への影響2021

    • Author(s)
      Gu Wenbin, Shenelle Pamela Bairan Lim, 長澤一衛, 尾定誠
    • Organizer
      第45回日本比較内分泌学会大会及びシンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 二枚貝浮遊幼生の着底・変態の神経支配と光による制御2021

    • Author(s)
      尾定誠, 長田知大, 長澤一衛, 顧文彬, 堀雅敏, 内木敏人, 寺井しま
    • Organizer
      令和3年度日本水産学会秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 糖タンパク質ホルモンと受容体FSHRによるホタテガの生殖腺発達への制御機構2021

    • Author(s)
      顧文彬, 尾定誠, 長澤一衛
    • Organizer
      令和3年度日本水産学会秋季大会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 水生無脊椎動物用プロモーター2022

    • Inventor(s)
      YOON Jeongwoong、長澤一衛、尾定誠、横井勇人
    • Industrial Property Rights Holder
      YOON Jeongwoong、長澤一衛、尾定誠、横井勇人
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Acquisition Date
      2022
    • Related Report
      2022 Annual Research Report
    • Overseas

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Published: 2020-04-28   Modified: 2024-01-30  

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